I regularly received shapefiles from helicopter flights over wildfires where the crew was mapping the perimeter of the fire. Many times these polygon shapefiles have donut holes/slivers and I have a need to remove them as part of my workflow. I'd like to build a workspace that would detect and eliminate these types of holes but cannot seem to find the right transformer. I've tried all of the donut hole tools with no success. I wonder if anyone might have some thoughts on how best to tackle this problem?

Here's a typical example of the types of holes I see. Immagine the helicopter flying back on the path it just came in on...